Molding-machine.



No. 796,921. PATENTBD AUG. s, 1905.

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MOLDING MACHINE.

APPLICATION FILED MAR. 20, 1905.

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No. 796,921. PATENTED AUG. 8, 1905.

E. D. MISNER.

MOLDING MACHINE.

APPLICATION FILED MAR. zo, 1905.

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No. 796,921.l PATENTED AUG. 8, 1905. E. D. MISNBR. MOLDING MACHINE.

APPLIGATION FILED MAR. zo, 1905.

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EDGAR D. MISNER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO VILLIAM O. RENFROVV, OF JOPLIN, MISSOURI.

MOLDlNG-NIACHINE.

Specification of Letters Patent,

Patented Aug. 8, 1905.

To @ZZ whom it' may concern:

Beit known that I, EDGAR D. MIsNER, of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Molding-Machines; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of this invention is to providea briquet-making machine which while economizing space and material and embodying simplicity of construction and operation greatly increases the output.

The invention will -be hereinafter fully set forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure lis a view in side elevation with parts broken away. Fig. 2 is a horizontal sectional view on line 2 2, Fig. 1, with parts omitted. Fig. 3 is an end View with parts broken away. Figs. 4, 5, and 6 show the dies and the feeders in various positions, together with the actuating means therefor.

Referring to the drawings, 1 designates the frame, having parallel sides 2.

3 is the main shaft, carrying two large gearwheels 4, which mesh with a pinion 5 of a counter-shaft 6, which latter has a gear-wheel 7 in engagement with the pinion 8 of the driving-shaft 9. Fast on shaft 3, outside the frame, are eccentrics '10, which are engaged by bands 12, to which rods I3 are secured, said rods at their other ends being secured to collars 14, journaled on the ends of a die-carrying body 15, movablelongitudinally on the frame in guideways formed in sides 2. Also fast on shaft 3, near each end thereof, are cams 16, which bear against and revolve between idlers 17, journaled ina longitudinallymovable frame 18. To each of these cam-actuated frames 18 is connected a rod 19, which rods are also adjustably secured to a second die-carrying body 20, movable horizontally in the guideways of sides 2. This die-carrying body 20 is positively connected by rods 21 to a third die-carrying body 22 atthe front end of frame 1, said rods 21 being passed loosely through openings in the die-carrying body 15. It will be noted that the two diecarrying bodies 20 and 22 must reciprocate horizontally in unison With each other. The

cam-actuated frames 18 are equipped with end projections 22a, which work between idlers or rollers 22", so as to guide such frames intheir movements, said idlers having fixed bearings.

23 designates a series of double-ended dies mounted in the die-carrying body 15 and projecting at their ends laterally therefrom. These dies Work reciprocatingly in a series of horizontal die-openings 24 in two die-housings 25. Mounted in the two die-carrying bodies 20 and 22 are two series of dies 26 and 27, respectively, which enter the openings 24 of the die-housings. These three sets of dies are vfor the purpose of compressing the pulverulent or plastic material into cakes or briquets While confined within the die-openings 24 after the manner contemplated by the machine forming the subject-matter of my application for Letters Patent of the United States, filed May 2, 1904, Serial No. 206,008; but according to my present invention the capacity of the machine is doubled in thatthe intermediate set of dies cooperates alternately with both end sets of dies. The two diehousings are preferably connected by a top plate 28 and have openings to accommodate rods 21.

From the described construction it will be seen that the revolution of shaft 3 effects the reciprocation of the several die-carrying bodies, and as the dies 23 are moving away from one end set of dies-say 27-at their other ends they are approaching the dies 26, and even after the maximum pressure has been exerted on the interposed mass of pulverulent material as the dies 26 recede the dies 23 follow in the same direction until the completely-pressed briquet is forced clear of the die-housings, whereupon it will fall on an endless conveyer 29, working beneath the die-housings and dies. Each of the dies 23 is concaved at its ends, and in such ends are fitted spring-pressed ejectors 30 for displacing the completed briquets when the complementary dies have moved away sufHciently for the purpose.

Each die-housing has vertical supply-openings 31, which intersect and empty into the horizontal openings 24. Reciprocatingly mounted on plate 28. is a feeder 3.2, having two series of pockets 33 for feeding the material from horizontally-disposed hoppers 34. This feeder 32 is actuated by a cam 35, adjustably mounted on shaft 3, the frame 36, whose idlers 37 are engaged by said cam, being connected by a Y-shaped rod 38 to the feeder. The hoppers 34 are equipped with interior revolving shafts 39, carrying each a series of blades or paddles set in different oblique planes (see Fig. 3) for the purpose of agitatzontally-movable slides 43, having rack-bars` 44, which mesh with pinions 45 on shafts 46, said shafts carrying' hand-w heels 47, by means of which the slides may be readily moved to control the supply to the hoppers.

The hot mixer 4l is preferabls7 made of boiler plate with a surrounding steam-space 48, and centrally therein is located a vertical shaft 49, carrying laterally-extended paddles, said shaft being driven by bevel-gearing 50, actuated by a horizontally-disposed shaft 5l. At right angles to the two hot mixers is a horizontally-disposed hot conveyer 52, also formed with a surrounding steam-space 53. This conveyer is preferably in the form of a screw whose shaft 54 is driven by bevel-gearing actuated by a shaft 55, having a band` wheel 56. An elevator, (indicated at 57,Fig. 1,) supplies the pulverulent material to the receiving end of the conveyer. The discharge end of the latter is centrally between the two hot mixers so that the material therefrom will fall equally into both of the latter. A steam-pipe 58 has branches 59 openingI into the interior of the hot mixers so as to introduce live steam into the agglomerated mass, while branches 60 supply steam into the steam-spaces 48. These latter spaces are connected by branches 61 to the steam-space 53 of the conveyer. A drip-pipe leading from the latter is indicated at 62. i Thus it will be seen that the mass of material from the time it is introduced into the con Veyer until discharged into the hoppers is being' continuously heated and agitated, with the result that it is in a hot plastic condition by the time it is discharged by the feeder into the die-openings of the housings. 1n fact` it is in such perfect condition to be compressed into cakes or briquets that additional heating of the die-housing is unnecessary.

In Fig. 2 l have shown the end sets of dies 26 27 as provided with coiled springs 63 and ,adjusting-plugs 64, working in the die-carrying bodies, such parts being for the purpose of equalizing the pressures onthe end dies.

Set-screws 65, passed through the plugs 64, reach close to the outer ends of the dies and act as stops for limiting or adjusting the travel of such dies under compression. Each of the dies 26 27 also carries on its exterior a nut 66,

which abuts against a wall or shoulder of the die-carrying body for resisting the tensions of the springs 63 when the dies are idle and also limiting' the extent to which such dies protrude beyond their respective carryingbodies.

The operation is as follows: The mass of finely-ground or pulverized material is vdeposited by the elevator into the conveyer 52, wherein it is heated and mixed in its travel therethrough and is discharged equally into the vertical hot mixers 41 at the tops thereof. The mass is then subjected to still further heat and is further agitated'and mixed, while a sufficient quantity of live steam is introduced to insure perfect agglomeration. The

i sliding doors in the bottom of the hot mixers are then opened sufliciently to allow the proper y quantity to pass into the horizontally-disposed hoppers, wherein the mixture is further agitated and is equally distributed over the lengths of the hoppers, from which it is forced by the revolving blades or paddles. The diefeeder 32 is being constantly reciprocated in a horizontal plane, its openings or pockets alternately coinciding with the outlets from the two hoppers. The material filling such pockets is quickly moved or conveyed by the feeder to the vertical supply-openings of the die-housings, through which it falls into the die-openings 24. Just previous to the deposit ofthe material into the vertical supplyopenings the respective set of end dies-say 26ghas entered the openings in its respective die-housing, and at the same time the dies 23 have by being' acted upon by cams l() assumed the full length of their rearward stroke and are now ready to start on their forward stroke 'and press the material between themselves and the dies 26. The material is engaged in the horizontal die-openings midway between the supply-openings and the end wall of the die-housing, and by the revolving of the cams 16 the dies 26 are held stationary in their forward po'sition until the maximum of pressure has been applied to the material by the forward stroke of dies 23. Thereupon the dies 26 by their differential motion are withdrawn on their rearward stroke and move rapidly away from the dies 23, which are following them, the finished. briquet being left in the die-housing against the dies 23 until the latter deliver them clear of the housing, the springs of the ejectors then loosening the finished briquets from the concavities in the dies, allowing them to drop onto the conveyer, by which they are removed from the machine. The same action occurs as between the dies 23 and the other set of end dies 27. Thus it will be seen that the machine makes two sets of briquets at each revolution of the cams on the main actuating-shaft.

I claim as my inventionw l. A molding-machine comprising two diehousings, a double series of dies located between the two die-housings, means for reciprocating said dies, two end sets of dies movable each toward and away from one die-housing, means for simultaneously operating all of the dies so that one set of end dies will always he cooperating with the first-mentioned dies, and means for supplying pulverulent material to said die-housings.

2. A molding machine comprising two spaced-apart die-housings, a series of doubleended dies located between said die-housings, means for constantly reciprocating said dies, two end sets of dies movable each toward and away from one die-housing, said end sets of dies being connected together, means for reciprocating said end sets of dies simultaneously with the shifting of the double-ended d ies. and means for supplying pulverulent material to said die-housings.

3. rlhe combination with the two spacedapart die-housings having die-openings, of the die-carrying body located between said housings, double-ended dies mounted in said body and projecting laterally therefrom and into said die-openings, two end sets of dies, carrying-bodies therefor, means connecting said latter bodies, a constantly-operated shaft, a set of cams thereon for actuating the firstmentioned die-carrying body, a second set of cams also on said shaft, and rods connected to one of said bodies of the end sets of dies having frames in engagement with said second set of cams.

4. The combination with adie-housing having a series of die-openings, of a series of dies working in said openings, means for reciprocating the same, a second set of dies also working in said die-openings, a rotary shaft, means actuated thereby connected to said first-mentioned series of dies, cams on said shaft, rods secured to said set of dies having frames with openings to accommodate said cams, idlers mounted in said frames for en gaging said cams, and means for guiding the frames in their movements.

5. The combination with a die-housing having a series of die-openings, of a series of dies working in said openings, means for reciprocating the same, a second set of dies also working in said die-openings, a rotary shaft, means actuated thereby connected to said first-mentioned series of dies, cams on said shaft, rods secured to said set of dies having frames with openings to accommodate said cams, idlers mounted in said frames for engaging said cams, said frames having end projections, and idlers mounted in fixed bearings, said projections extending between said idlers.

6. The combination with the two feed-hoppers, of the feeder movable beneath said hoppers and having openings or pockets, diehousings having vertical supply-openings and horizontal die-openings into which said supply-openings extend, a series of double-ended dies extended into the die-openings of both housings, two end sets of dies movable toward and away from said die-housings, and means for simultaneously actuating said feeder and all of the dies, as set forth.

7. In a molding-machine, the combination with the two die-housings, of the double set of dies workingin both housings, the end sets of dies, each working in one die-housing, means for reciprocating Aall the dies simultaneously, a reciprocating feeder for supplying pulverulent material to both die-housings, horizontally disposed hoppers above said feeder, rotary paddles in said hoppers, mixers above said hoppers, and means for controlling the supply from said mixers to said hoppers.

8. rlhe combination with the die-housings, the series of dies, the feeder, the hoppers, and rotary paddles in said hoppers, of the vertically-disposed mixers vfor supplying said hoppers having rotary agitators therein, horizontally-adjustable bottoms for controlling the outlets from said mixers to said hoppers, means for supplying both mixers at their tops, and means for heating the pulverulent mass within said mixers.

9. The combination with the conveyer, of the two mixers into which said conveyer discharges, rotary agitators in said mixers, means for supplying steam into the mixers, movable bottoms for said mixers having rack-bars, two shafts having gear-pinions meshing with said rack-bars, and hand-w heels on said shafts.

In testimony whereof 1 have signed this specification in the presence of two subscribing witnesses.

EDGAR D. MISNER.

Vitnesses:

M. K. McGRA'ri-I, ROBERT H. MERRYMAN. 

